Python/maths/find_min.py
Lewis Tian 77b243e62b
bugfix: Add empty list detection for find_max/min (#4881)
* bugfix: Add empty list detection for find_max/min

* fix shebangs check
2021-10-07 23:20:32 +08:00

36 lines
827 B
Python

from __future__ import annotations
def find_min(nums: list[int | float]) -> int | float:
"""
Find Minimum Number in a List
:param nums: contains elements
:return: min number in list
>>> for nums in ([3, 2, 1], [-3, -2, -1], [3, -3, 0], [3.0, 3.1, 2.9]):
... find_min(nums) == min(nums)
True
True
True
True
>>> find_min([0, 1, 2, 3, 4, 5, -3, 24, -56])
-56
>>> find_min([])
Traceback (most recent call last):
...
ValueError: find_min() arg is an empty sequence
"""
if len(nums) == 0:
raise ValueError("find_min() arg is an empty sequence")
min_num = nums[0]
for num in nums:
if min_num > num:
min_num = num
return min_num
if __name__ == "__main__":
import doctest
doctest.testmod(verbose=True)